Bar clamp



FIG. 1 is a rear elevational view of a bar clamp showing my new design, the broken line showings being for environmental purposes only and form no part of the claimed design;

FIG. 2 is a front elevational view;

FIG. 3 is a right side elevational view;

FIG. 4 is a left side elevational view;

FIG. 5 is a bottom plan view;

FIG. 6 is a top plan view thereof;

FIG. 7 is a front elevational view of a second embodiment of a bar clamp showing our new design of FIGS. 1-6;

FIG. 8 is a bottom plan view of 7-7; and,

FIG. 9 is a left side elevational view of FIG. 7. 

The ornamental design for a bar clamp, as shown. 